Summer 2019 fieldwork by MSc student Maya Soukup focused on latest Neoproterozoic(?) to Lower Cambrian strata in the Gros Morne, Humber Arm, and Port au Port Peninsula regions of western Newfoundland that document the rift to drift history of the ancient Iapetan margin. The field objectives of Maya Soukup's project are to identify basement-cover contact relationships and principal lithofacies of Labrador and Curling group strata, whereas the lab objectives are to constrain the maximum depositional age and provenance of sampled units with laser ablation split stream (LASS) detrital zircon U-Pb-Hf techniques. This project is supported by Nalcor Energy and is part of our reservoir quality and regional stratigraphic correlation research program in western Newfoundland.
MSc student Adam Wiest completed his second and final season of fieldwork on Mesozoic synorogenic strata that crop out along the Yukon-Tanana - Slide Mountain terrane boundary in the Faro area of central Yukon. The objectives of 2019 field studies were to investigate contact relationships between Lower Jurassic debris-flow and Upper Triassic(?) turbidite units of the Faro Peak formation (outlined in Wiest and Beranek, 2019) with metasedimentary and volcanic rocks of the Yukon-Tanana and Slide Mountain terranes. Rock samples collected during this field season will undergo detrital zircon laser ablation split-stream (LASS) ICP-MS analysis to constrain the provenance and maximum depositional age of the Faro Peak formation and its significance to the exhumation histories of Intermontane terranes in the northern Canadian Cordillera. This research is supported by the Yukon Geological Survey and Geo-mapping for Energy and Minerals (GEM) Program at Natural Resources Canada.
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